/* ===== COLOUR TOKENS ===== */
:root {
  --navy:      #1a2535;
  --navy-mid:  #2c3e50;
  --navy-dark: #111c27;
  --orange:    #e67e22;
  --light-bg:  #f8f7f5;
  --white:     #ffffff;
  --text:      #333333;
  --text-secondary: #555555;
  --muted:     #bdc3c7;
  --border:    #e0ddd8;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: Arial, Helvetica, sans-serif; color: var(--text); line-height: 1.6; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
}
.section-label {
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 8px;
  display: block;
}
.section-title {
  font-size: 28px;
  color: var(--navy);
  margin-bottom: 16px;
}
.section-title--light { color: var(--white); }

/* ===== LAYOUT ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 64px 0; }
.section--dark  { background: var(--navy); }
.section--light { background: var(--light-bg); }
.section--white { background: var(--white); }
.text-center { text-align: center; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 3px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: opacity 0.2s;
}
.btn:hover { opacity: 0.88; }
.btn--primary  { background: var(--orange); color: var(--white); }
.btn--outline  { border-color: var(--orange); color: var(--orange); background: transparent; }
.btn--dark     { background: var(--navy); color: var(--white); }

/* ===== PAGE HERO ===== */
.page-hero {
  background: var(--navy);
  padding: 56px 0 40px;
  border-bottom: 3px solid var(--orange);
}
.page-hero h1 {
  color: var(--white);
  font-size: 36px;
  letter-spacing: -0.5px;
}
.page-hero p {
  color: var(--muted);
  margin-top: 8px;
  font-size: 16px;
}

/* ===== CTA STRIP ===== */
.cta-strip {
  background: var(--orange);
  padding: 40px 0;
  text-align: center;
}
.cta-strip h2 { color: var(--white); font-size: 24px; margin-bottom: 8px; }
.cta-strip p  { color: rgba(255,255,255,0.85); margin-bottom: 20px; }

/* ===== NAVIGATION ===== */
.site-nav {
  background: var(--navy);
  border-bottom: 2px solid var(--orange);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.site-nav__logo {
  display: flex;
  align-items: center;
}
.site-nav__logo img {
  height: 56px;
  width: auto;
}
.site-nav__links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.site-nav__links a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: color 0.2s;
}
.site-nav__links a:hover,
.site-nav__links a.active { color: var(--white); }
.site-nav__links .btn--primary {
  padding: 8px 18px;
  font-size: 13px;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: transform 0.2s;
}
.site-nav__mobile {
  display: none;
  background: var(--navy-dark);
  padding: 16px 0;
}
.site-nav__mobile a {
  display: block;
  padding: 10px 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.site-nav__mobile a:hover { color: var(--white); }
.site-nav__mobile.is-open { display: block; }

/* ===== FOOTER ===== */
.site-footer { background: var(--navy-dark); padding: 48px 0 0; }
.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.site-footer__logo {
  height: 72px;
  width: auto;
  margin-bottom: 14px;
  border-radius: 6px;
}
.site-footer p { color: var(--muted); font-size: 13px; line-height: 1.7; }
.site-footer h4 {
  color: var(--white);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.site-footer ul li { margin-bottom: 8px; }
.site-footer ul a { color: var(--muted); font-size: 13px; transition: color 0.2s; }
.site-footer ul a:hover { color: var(--orange); }
.site-footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 16px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.site-footer__bottom p { color: var(--muted); font-size: 12px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .site-nav__links { display: none; }
  .nav-toggle { display: flex; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 24px; }
  .site-footer__bottom { flex-direction: column; gap: 8px; text-align: center; }
  .section-title { font-size: 22px; }
  .page-hero h1 { font-size: 26px; }
}

/* ===== PORTFOLIO ===== */
.portfolio-filter {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.portfolio-filter__btn {
  padding: 8px 20px;
  border: 2px solid var(--border);
  background: var(--white);
  border-radius: 3px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  transition: border-color 0.2s, color 0.2s;
}
.portfolio-filter__btn.is-active,
.portfolio-filter__btn:hover {
  border-color: var(--orange);
  color: var(--orange);
}
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: 3px;
  cursor: pointer;
}
.portfolio-item img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  transition: transform 0.3s;
}
.portfolio-item:hover img { transform: scale(1.04); }
.portfolio-item__overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(26,37,53,0.92));
  color: var(--white);
  padding: 20px 14px 14px;
  transform: translateY(100%);
  transition: transform 0.3s;
}
.portfolio-item:hover .portfolio-item__overlay { transform: translateY(0); }
.portfolio-item__overlay strong { display: block; font-size: 14px; }
.portfolio-item__overlay span { font-size: 12px; color: var(--muted); }
.portfolio-item.is-hidden { display: none; }

/* ===== LIGHTBOX ===== */
#lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 999;
  align-items: center;
  justify-content: center;
}
#lightbox.is-open { display: flex; }
#lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: 3px;
}
.lightbox__close {
  position: absolute;
  top: 20px; right: 28px;
  color: var(--white);
  font-size: 32px;
  cursor: pointer;
  line-height: 1;
  background: none;
  border: none;
}

/* ===== FAQ ===== */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item__question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 18px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq-item__question::after {
  content: '+';
  font-size: 22px;
  color: var(--orange);
  flex-shrink: 0;
  transition: transform 0.2s;
}
.faq-item.is-open .faq-item__question::after { transform: rotate(45deg); }
.faq-item__answer {
  display: none;
  padding: 0 0 18px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.faq-item.is-open .faq-item__answer { display: block; }

/* ===== SERVICE CARDS ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border-top: 3px solid var(--orange);
  padding: 28px 24px;
  border-radius: 2px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.service-card__icon { font-size: 32px; margin-bottom: 12px; }
.service-card h3 { font-size: 17px; color: var(--navy); margin-bottom: 8px; }
.service-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ===== CONTACT FORM ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 3px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(230,126,34,0.25);
}
.form-group textarea { height: 120px; resize: vertical; }
.contact-info h3 { font-size: 18px; color: var(--navy); margin-bottom: 20px; }
.contact-info__item { display: flex; gap: 12px; margin-bottom: 16px; align-items: flex-start; }
.contact-info__item .icon { font-size: 18px; margin-top: 2px; }
.contact-info__item p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.contact-info__item a { color: var(--orange); }
.map-wrapper { margin-top: 48px; }
.map-wrapper iframe { width: 100%; height: 360px; border: 0; border-radius: 3px; }

/* ===== AREAS CHIPS ===== */
.area-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.area-chip {
  padding: 8px 18px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
}

/* ===== RESPONSIVE ADDITIONS ===== */
@media (max-width: 768px) {
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .portfolio-grid { grid-template-columns: 1fr; }
}